Hybrid bathymetric-topographic digital elevation model for the Missouri River at Searcys Bend, near Columbia, Missouri

The dataset contains a hybrid bathymetric-topographic digital elevation model (DEM) of the Missouri River at Searcys Bend, near Columbia, Missouri. The DEM was generated within ArcGIS by compositing bathymetric data from multiple single and multibeam sonar surveys collected between September 2019 and July 2021 with previously existing topographic data collected from airborne LiDAR into a triangulated irregular network (TIN). The resulting TIN was then manually edited and exported as a raster for use in developing a hydrodynamic model.

本数据集包含密苏里州哥伦比亚市附近瑟西弯道段密苏里河的混合水深-地形数字高程模型（DEM）。该DEM在ArcGIS软件中生成：将2019年9月至2021年7月期间采集的多组单波束与多波束声呐勘测水深数据，与此前通过机载激光雷达（LiDAR）获取的现有地形数据整合为不规则三角网（TIN）；随后所得不规则三角网经手动编辑，并导出为栅格数据，用于水动力模型的开发。